Three levels of prevention
Primary prevention concentrates on the cause prevention or reduction of risk factors,so as to prevent the development of disease. 公卫家园
Secondary prevention is to diagnose and treat diseases in their early stages so as to restore or improve health,such as the screening program.
公卫考场
Tertiary prevention is to reduce complications of disease,improve the outcome,so as to improve the quality of life of the patients. 公卫百科
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